Facebook's engineering team posted details on its "Autoscale" load balancing technology, which is now yielding significant energy savings as traffic on the site rises and falls during the course of a day.
In a blog posting, Facebook engineers describe how the Autoscale load balancer dynamically adjusts the size of virtual pools of web servers such that each active server will get at least medium-level CPU utilization regardless of the overall workload level.
https://code.facebook.com/posts/816473015039157/making-facebook-s-software-infrastructure-more-energy-efficient-with-autoscale/
In a blog posting, Facebook engineers describe how the Autoscale load balancer dynamically adjusts the size of virtual pools of web servers such that each active server will get at least medium-level CPU utilization regardless of the overall workload level.
https://code.facebook.com/posts/816473015039157/making-facebook-s-software-infrastructure-more-energy-efficient-with-autoscale/